US005851352A [ii] Patent Number: [45] Date of Patent:
[54] SOFT MULTI-PLY TISSUE PAPER HAVING A SURFACE DEPOSITED STRENGTHENING AGENT
[75] Inventors: Kenneth Douglas Vinson, Cincinnati, Ohio; Jonathan Andrew Ficke, Lawrenceburg, Ind.; Howard Thomas Deason, Hamilton, Ohio
[73] Assignee: The Procter & Gamble Company,
Cincinnati, Ohio
[21] Appl. No.: 854,397
[22] Filed: May 12, 1997
[51] Int. CI. D21H 23/22
[52] U.S. CI 162/112; 162/123; 162/124;
162/125; 162/127; 162/129; 162/130
[58] Field of Search 162/109, 111,
162/112, 113, 123, 127, 132, 133, 125, 129, 169; 156/291, 324; 428/153, 154
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FOREIGN PATENT DOCUMENTS
0144658 6/1985 European Pat. Off D21H 1/02
Primary Examiner—Peter Chin
Attorney, Agent, or Firm—Bart S. Hersko; Edward J. Milbrada; E. Kelly Linman
[57] ABSTRACT
Strong and soft multi-ply tissue paper products useful as absorbent sanitary products such as bath tissue, facial tissue, and absorbent towels are disclosed. At least one internal surface of the tissue paper product has a surface deposited strengthening agent.
23 Claims, 6 Drawing Sheets
